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TIL about the "Mosquito Device" a special alarm invented in 2005. The device prevents young people from gathering in public spaces by emitting a dangerously high-frequency sound that is intentionally tuned to be heard primarily by younger people.

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k60g TIL HBO programming president Michael Lombardo didn’t understand why fans of Game of Thrones wouldn’t want the show to catch up with the books. He said: “I finally understand fans’ fear—which I didn’t a couple years ago…Let’s all hope and pray that’s not going to be a problem.”
OG5vR TIL about he Hairy Frog, also known as the Wolverine Frog. When threatened, it breaks it's own toe bones so that the sharp ends stick out of it's toes like the X-men's Wolverines claws. The toe bones eventually retract and grow back in place as the tissue heals over the hole.
aD0M TIL the Original Ronald McDonald was fired for being overweight
ZpDj4 TIL George Low was a top engineer for the Apollo moon landing team and his son David became a three-time shuttle astronaut
oB5Yo TIL Heteropaternal Superfecundation is referred to as a form of twinning where genetically the twins are half siblings or they have different fathers. In 2013, a New Jersey woman found out her twin daughters have different Daddy thru DNA test when she sought for child support on her partner.